Solutions by everydaycalculation.com

1^{st} number: 12 3/5, 2^{nd} number: 35/90

635 - 3590 is 109990.

- Find the least common denominator or LCM of the two denominators:

LCM of 5 and 90 is**90**

Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,

635 = 63 × 185 × 18 = 113490 - Likewise, for the 2nd fraction, since 90 × 1 = 90,

3590 = 35 × 190 × 1 = 3590 - Subtract the two like fractions:

113490 - 3590 = 1134 - 3590 = 109990 - In mixed form: 121990

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